Paper-making machine.



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PAPER-MAKING MAGHINE.

(Applicatjgn Bled Apr. 15, 1901.)

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PAPER MAKING IVAGHINE. (Application ma A pr. ik, 19m.)

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:UNITED STATES PATENT Drame.

CHARLES II. A'lKINS, AOF SPRINGFIELD, MASSACHUSETTS.

PAPER-MAKING MACHIN.

SPECIFICATION forming part of Letters .Patent No. 690,686, dated January '7, 1902.

Application led April 15, 1901. Serial No. 55,884. (No model.)

To all whom it may concern.-

Beit known that I, CHARLES H. ATKINs, a citizen of the United States of America,and a resident of Springfield, in the county of- Hampden and State of Massachusetts, have invented certain new and useful Improvements in Paper-Making Machines, of which the following is a full, clear, and exact description.

This invention relates to paper-making machines,and more especially to that class thereof which in the art are known as Fourdrinier machines and iu which paper-pulp is passed over an endless wire apron, the sides of which are limited or bounded byso-called deckle-straps,said screen and deelde-straps moving in unison, so that the water contained within the pulp may be withdrawn therefrom and the pulp will ultimately form an endless sheet. The paper or sheet as it passes beyond the deckle-straps will have at its sides rough edges,ordinarily called deckle edges, and .my invention has for one of its principal objects the provision of means whereby these deckle edges may be obtained with unusual certainty and practicability of the character and form desired.

My invention has, furthermore, for its object the provision of means whereby the eiciency of any one of said heads may be varied at opposite sides thereof; and my invention comprises a series of heads each one of which is tiltable laterally, so as to vary the proximity ofeither edge relatively to the under side of the foraminous cover of the suction-box, so that the amount of water withdrawn from the pulp may be regulated to a nicety and a ine feather deckle edge may be obtained.

Further improvements will be found in the particular construction and organization of some of the component elements of the apparatus, as will be hereinafter described, and particularly pointed out in the claims.

In the accompanying drawings, in which similar characters denote similar parts, Figure l is a plan view of a portion of a papermachine incorporating my invention. Fig. 2 shows a side view, partly broken away, of that portion of the machine shown in Fig. 1. Figs. 3, 4, and 5 represent different views in detail of my improved suction-box, Fig. 3

illustrating the top view thereof and partly shown in a horizontal section taken on lino 3V 3 of Fig. 4. Fig. 4 is a vertical section taken on line 4 4 of Fig. 3, and Fig. 5 is a central longitudinal section of said box. Fig. 6 shows a vertical cross-section on an enlarged scale and taken on line 6 6 of Fig. 3. Fig. 7 is a top view illustrating the manner in which the heads within the box are controlled, the head .being removed. Figs. 8, 9, and 10 illustrate the manner in which the heads may be operated to vvarythe efficiency of their oppositely- -disposed sides when in coperation with the under side of the foraminous box-cover.

As has been above stated, it is one of the principal objects of my present invention to K provide a machine in which the deckle edges of the paper may be made very thin, so that a nice finished product may be obtained.

In the drawings,20 denotes asuitable framework supporting a'plurality ofrollers 2l for said endless wire apron and leave the pulp in less wet condition. Disposed near one end of said screen are the sluice-bars or slices 23, also of ordinary construction and provided for preventing the foam of the pulp from passing beyond that point.

youd the slices, which are transversely be-i tween them.

Interposed between the side deckles 24 are shown a series of intermediate deckles 27, the number of which maybe varied as desired, said deckles being carried on pulleys 28 and 29,respectively,the-latter being mounted for rotation on lthe shaft 26', above referred to, and positioned thereon-as, for instance, by collars 30--while the pulleys 28 are preferably loosely mounted upon a shaft 31, whichv in the present instance is shown 4stationary in side frames 32, secured to or forming a part of the frame 20.

The position of the pulleys 28 28 is such that the intermediate deckles 27 are forward of the sluice-bars, as shown in Figs. 1 and 2. The pulleys 28 may be positioned on the shaft 3l by collars 33, disposed on one side of said. pulleys 2S, as seen in Fig. 1.

It will now be understood that the pulp passing beyond the sluice-bars 23 will fill the space between the side deckles 2l and will therefore as a matter of course lie on the endless wire apron, so that as the latter travels forward the entire thickness of the layer of pulp would be carried beneath the intermediate deckles 27 and the top of the Wire, whereby the close contact between these parts would of course be prevented. Means are provided whereby not only this difficulty will be avoided, but whereby, furthermore, the consistency of the pulp adjacent to the deckles may be reduced, so that the thin film of water containing more or less pulp will travel along with said deckles and the paper finally issued from between said deckles will then have a fine feather-edge. The means which are preferably employed for this purpose may be clearly seen in Fig. 2, in which 34 denotes a water-supply pipe provided with a series of stop-cocks 35, arranged crosswise of the machine and connected by fiexible tubes 36 with a series of nozzles 37, the number of which may correspond to the number of intermedi ate deckles 27. Each of the nozzles 37 is carried in this instance by an arm 3S, the rear end of which is clamped to the shaft 3l, above referred to, while the lower end of said nozzle may be positioned relatively to the point of contact between thedeckle-strap and endless wire apron in any desired manner, so as to direct a stream of water in the required direction and with the proper force, the stopcocks 35 serving as a means for regulating the supply of water thrown upon the endless wire apron and to wash away or remove the pulp from the endless wire apron and in alinement with the intermediate deckles 27, as will be readily understood.

Disposed Vbeneath the endless wire apron, near the point where the deckle-straps leave the endless wire apron and where the fibers of the pulp are sufficiently interwoven and freed from Water to constitute a sheet of paper, although in Wet condition, is a suctionbox 39, which may be of any suitable construction, this suction-box removing all surplus moisture from the paper and leaving the same in proper condition to have a watermark impressed upon it, the mechanism for performing this work not being shown.

After the sheet has been provided with a water-mark it becomes necessary to Withdraw all moisture from the several sheets, the number of which of course depends upon the number of spaces between the deckles. This water is withdrawn from the stock bya suctionbox 40, containing a number of improvemen ts, which also form subject-matter of this application. The suctionbox 10 is provided eeose with a foraminous cover etl, and inasmuch as this box constitutes a vacuum-box, into which the water is withdrawn from the paper traveling above the same, it becomes necessary to seal all such holes in said cover as are disposed in alinementwith the deelde-straps, said holes being at this time not covered by any paper, so that naturally the vacuum in said box would be broken and the efficiency thereof impaired. Now since the deckle-straps 27 are adapted for adjustment laterally of the machine it will become necessary to provide a mechanism whereby the proper holes in the foraminous cover may be sealed no matter what position the deckle-straps may be in, and, as above stated, myinvention comprises the combination, with said suction-box, of a plurality of heads, which are operative independently of and relatively to each other, and the mechanism, substantially as hereinafter Aparticularly described, for operating and adjusting the same in proper position being disposed exteriorly of the box, so that as a matter of fact any one and all of the heads are completely under the control of the operator, who can make the necessary adjustment from the side of the machine.

Referring lmore particularly to Figs. 3, 4, and 5 of the drawings, it will be seen that the suction-box 40 contains a series of heads or members the number of which corresponds to the number of intermediate deelde-straps employed, five being shown. Commencing on the left of Fig. 3, m' denotes a head or member, the top ofwhich may be covered with rubber or other suitable material and which is ot' a width corresponding to that of the intermediate deelde-straps 27, while the length of said head will permit the same to be moved within the box. (See Fig. 6.) The head m' is primarily mounted for movement longitudinally of said box, while in addition to such movement said head may be raised or lowered in order to bring the rubber top into contact with or to be free from the under side of the foraminous cover 4l.

The box 4:0 is provided with a pair of side pockets 42, which are preferably divided into sections by partitions 43. One of said pockets supports a shaft s', projecting through the end walls of said pocket and having at one end thereof a handle h', while near the other end thereof said shaft carries a pair of collars c', between which is mounted a yoke y', the arms of which engage the member fm.' at opposite sides thereof, and it will therefore be seen that when said shaft s is moved longitudinally the member m' will be shifted in said box.

Secured to the shaft s and intermediate the arms of the yoke y/ is a screw-threaded sleevef, in engagement with an arm ct', the lower end of which may enter an aperture or opening 0', disposed at a point remote from its support and in a depending arm d', se cured to or forming a part of the head m. It will be seen that when the shaft s is rotated ICO IIO

the arm a' will be moved longitudinally of said shaft and relatively to the lyoke y and that therefore the head m will be tilted laterally between the arms of said yoke, this movement resulting in varying the proximity of both oppositely-disposed edges of said head relatively to the under side of the cover, as

or lowered relatively to the cover, these means consisting in the present instance of a cam projection p, secured to or forming a part of a rotatable rod r', said cam being of such length as to correspond to its box-section, so that the head m may be moved from end to end of said section and yet be under the control of the cam p'. The rod lr' is journaled at both ends in the adjusting-sleeves 44, which are preferably externally screw-threaded and serve for adjusting the deckle-heads 45 into alinement with the side deckles 24, and said rod rV is provided at its extreme right end with thehandle or knob lo', whereby said rod may be turned to raise or lower the head 'm' relatively to the cover 41, as desired, so that, to recapitulate, the member m' has three distinct movements-first, a shifting movement bodily longitudinally of the suction-box second, a vertical movement relatively to the cover of said box, and, third, a tilting movement, also relative to said cover, so that by these means I am enabled to regulate and vary the vefficiency as well as location of the head m as required.

As above stated, my improved suction-box is herein illustrated as having five heads to correspond to the number of intermediate' mounted for movement longitudinally of the suction-box by a shaft s2, having'the yoke y2, carrying a screw-threaded sleeve f2, which engages and is adapted to move the arm a2 longitudinally of the shaft, tilting the head .m2 as required. The means for raising and lowering the head m2 is in this instance a` cam-piece 102, secured to the end of a tubular rod r2, which is operable by a knob k2, secured to the louter end of said rod. Likewise the head m3 may be shifted longitudinally by a shaft s3, raised by a cam p3 on the tubular rod yrs, audit may be tilted by rotating the shaft s3 and with it the screw-sleeve f3, engaging the arm as. In a similar manner the head m4 is under control of the shaft s4 and the cam p4 on the tubular rodrf, while the head m5 is under control of the shaft S5, the cam p5, and the tubular rod 715, the several shafts s', s3, and S5 being preferably superposed to each other within one side pocket of the suction-box, while the other remaining shafts s2 and s4 for operating the heads m2 and m4, respectively, are shown located with-l in the other side pocket of the suction-box 40, the several members of the operatin g mechanism of each individual rod or shaft being substantially the same throughout, so that the description of the Iirst one, as given above in detail, will answer for all the remaining The suction-box 40 constituting a vacuumbox, it may be advantageous to employ, in connection with the several shafts projecting 'through the end walls of said box, stuing-boxes or similar devices, which may be j of any suitable construction, and I wish it to be understood that Ido not conine my invention to the particular construction and organization of the several elements as hereinbefore described, since many changes may bejmade therein without departing from the gist of my invention.

Having thus described my invention, what I claim, and desire to secure byLetters Patj ent, is-

rected upon the wirel adjacent the initial point of contact of the intermediate deckles therewith, and conduits for forcing Huid under pressure through said nozzles.

2. The combination, with the endless wire apron, the outer pair of deckles and the slicebar transversely arranged between the lower courses of the outer deckles, of a plurality of deckle-straps which are bodily transversely adjustable, and coperativefwith. the wire along courses forward of the slice-bar, nozzles which are transversely adjustable to vcorrespond with the positions of said intermediate deckles, directed upon the wire adjacent the initial point of contact of the 'said intermedi- Vate deckles therewith,and conduitsfor forcingfluid under pressure through said nozzles.

3. In a paper -machine, the combination with the endless wire apron, the usual pair of side deckles, and the plurality of intermediately-arranged deckles transversely adjustable, of a transversely-arranged support adjacent the initial ends 'of the said inter-mediate deckles, a plurality of brackets individually transversely adj ustableon-said support, and a plurality of nozzles carried by said brackets directed upon the wire adjacent the initial point of contact of'theintermediate deckles therewith. i A

4. In a paper-machine, the combination with an endless wire apron, the usual pair of outer deckles, and the plurality of intermediate deckles transversely adjustable, of the transverse] y-arran ged shaft 31 supporting the iiexible conduits between said pipe and the several nozzles.

5. The combination with the endless wire apron, the usual pair of outer deckles, and the plurality of intermediate deckles bodily transversely adjustable, of the transverselyarranged shaft 31 supporting the series of adj ustable brackets 38 corresponding to the intermediate deckles, the series of nozzles earried by said brackets, the common supplypipe 34, the series of liexible conduits between said pipe and the several nozzles, and the cocks 35 for opening and closing connection between the supply-pipe and the individual flexible conduits.

6. The combination, with the endless wire apron, the usual pair of outer deckles, a plurality of intermediate deckle-straps coperative with the wire, and a transverse shaft, having pulleys for the intermediate deckles, of a series of nozzles for removing the pulp from the wire adjacent to the intermediate deckle-straps and near the initial point of Contact thereof with said wire, fluid-supply conduits connected with said nozzles, and bracket-arms, on which said nozzles are individually mounted, which are supported on and radially adjustable relatively to the said deckle-pulley shaft.

7 The combination, with an endless wire apron, a pair of outer deckle-straps coperative therewith; and one or more intermediate deckles laterally adjustable, and a suctionbox having a foraminous cover of sealingsections for closing the holes in port-ions of the cover movable endwse in the box and also bodily movable against and away from the under side of the cover; and means operable exteriorly of the suction-box for both endwise adjusting the sealing sections and moving them from or against the cover.

8. The combination, with an endless wire apron, and deckle-straps which are bodily adjustable to occupy positions nearer or farther apart as desired; of a suction-box,havin g a foraminous cover; devices for sealing the holes in said cover, comprising a pair of outer end sections, and sections intermediate thereof which latter have inclined tops as described, are mounted for longitudinal movements, bodily vertical movements, and lifting movements, externally-accessible means for shifting said intermediate sections longitudinally in said box, externally-accessible means for tilting said sections, and externally-operable means for raising and lowering said intermediate sections.

9. The combination, with the endless wire apron; and a plurality of deckles one or more of which are bodily adjustable transversely of their lengths; of a suction-box having a .fo-

raminous cover; a device for sealing the holes in said cover, in sections; and a longitudinally-movable member and a yoke carried thereby for shifting saiddevice longitudinally in said box.

10. The combination, with the endless Wire apron and the deckles; of a suction-box, having a foraminous cover; a device for sealing the holes in said cover, in sections; and a cam for bringing said deviceinto contact with said cover.

11. The combination, with the wire apron and the deckles, one or more of which are transversely adjustable, of a suction-box having a foraminous cover; a device for sealing the holes in said cover, in sections; and a member movable longitudinally in said box'; a yoke loosely supported on said member, and for shifting said device longitudinally in said box; and means for bringing said device into contact with said cover.

12. The combination, with the wire apron and the deckles, one or more of which are transverselyad j ustable, of a suction-box, having a foraminous cover; and a device for sealing the holes in said cover, in sections; an oscillatory member for bringing said devices into contact with said cover; and a longitudinally-movable yoke movable longitudinally of said box, and for shifting said device.

13. The combination, with the wire apron and the deckles, one or more of which are transversely ad j ustable, of a suction-box, having a foraminous cover; a device for sealing the holes in said cover, in sections; a yoke for shifting said device longitudinally of said box; and an oscillatory member for forcing said device into contact with said cover.

142. The combination with the screen and the deckles of a suction-box, having a foraminous cover; a device for sealing the holes in said cover, in sections; 'and means for varying the sealing efficiency of said device at opposite sides thereof.

15. The combination, with the screen and the deckles one or more of which are transversely adjustable, of a suction-box, having a foraminous cover; a device for sealing the holes in said cover, in sections; a yoke for shifting said device, movable longitudinally of said box; and an arm engaging said device at a point remote from its point of support, and movable relatively to and independently of said yoke.

16. The combination, with the screen and the several deckles one or more of which are transversely adj ustable, of a suction-box, having a forarninous cover; a device for sealing the holes in said cover, in sections; means for shifting said device longitudinally of said box; an arm engaging the said device at a point remote from its point of support; and a rotatable sleeve for operating said arm relatively to the yoke.

17. The combination, with the screen and the several deckles one or more of which are transversely adjustable, of asuction-box, hav- IOO IIO

ing a foraminous cover; a device for sealing a foraminous cover; a -laterally-tiltnble dethe holes in said cover, in sections;- a yoke vice for sealing the holes in said cover, in secfor shifting said device longitudinally of said tions; and a rotatable member for operating box; an arm engaging said device at a. pointsaid device. 5 remote from its point of support; and a Signed by me, at Springfield, Massachn- 15 screw-threaded sleeve for moving said arm setts, this 11th day of April, 1901. relatively to the yoke and for positioning said CHARLES H. ATKINS. device relatively to the cover. Witnesses: 18. The combination with the screen' and WM. S. BELLOWS, 1o the several deokles of afsnction-box, having M. A. CAMPBELL. 

